The Facebook Profile Lock feature was designed to protect users—particularly in specific regional demographics—from targeted harassment, cyberstalking, and identity theft. Lock your Facebook profile | Facebook Help Center
The core reason these tools are ineffective is simple: Facebook's privacy settings are not stored on your local computer; they are enforced on Facebook's own secure servers. A browser extension or a website simply does not have the power to command Facebook to override a user's explicit privacy choice. As one security forum user succinctly put it, "There isn’t a magic 'viewer' that won’t either require you to log in or quietly scrape content behind the scenes (which is exactly what gets you in trouble)". Any tool claiming otherwise is making a false promise to lure you into a trap. fb locked profile dp viewer upd
"Stop! 🛑 Trying to view a locked Facebook profile picture? Don't fall for those shady websites asking for your login!" The Facebook Profile Lock feature was designed to